The vitreous makes up approximately what percent of the globe?

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Prepare for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The vitreous makes up approximately what percent of the globe?

Explanation:
The vitreous body fills most of the eye by volume. In a normal eye, it occupies about four-fifths of the globe, roughly 80% of the total volume, spanning the posterior segment from behind the lens to the retina. The remaining space (about 20%) is taken by the anterior segment structures, including the cornea, aqueous humor, lens, and other tissues. So, 80% is the best fit. Numbers like 60% or 70% would understate how much the vitreous fills, while 90% would overstate it since there are still sizable anterior structures occupying space.

The vitreous body fills most of the eye by volume. In a normal eye, it occupies about four-fifths of the globe, roughly 80% of the total volume, spanning the posterior segment from behind the lens to the retina. The remaining space (about 20%) is taken by the anterior segment structures, including the cornea, aqueous humor, lens, and other tissues. So, 80% is the best fit. Numbers like 60% or 70% would understate how much the vitreous fills, while 90% would overstate it since there are still sizable anterior structures occupying space.

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